IP Library › Granted Patent US 6,342,426
Granted Patent Utility
US 6,342,426 · Confirmation No. 8832

Method for protecting stepper alignment marks

Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2001-05-10 TRNA Transmittal of New Application 4 View
2001-05-10 SPEC Specification 5 View
2001-05-10 CLM Claims 2 View
2001-05-10 ABST Abstract 1 View
2001-05-10 DRW Drawings-only black and white line drawings 4 View
2001-05-10 OATH Oath or Declaration filed 2 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
Patent No.
US 6,342,426
App. No.
09/854,952
Filed
2001-05-10
Granted
2002-01-29
Art Unit
2812
PTA
0 days